<?php //$Id: block_admin.php,v 1.100.2.13 2008/12/19 09:49:10 mjollnir_ Exp $

// VINL Code
//   Daniel Souza - 04/14/2009
// - Added Tool Tips
//   Daniel Ploch - 04/18/2009
// - Began integration of Kwik Kqiz Kreator

class block_admin extends block_list {
	function init() {
		$this->title = get_string('administration');
		$this->version = 2007101509;
	}

	function get_content() {

		global $CFG, $USER, $SITE, $COURSE;

		if ($this->content !== NULL) {
			return $this->content;
		}

		$this->content = new stdClass;
		$this->content->items = array();
		$this->content->icons = array();
		$this->content->footer = '';

		if (empty($this->instance->pageid)) { // sticky
			if (!empty($COURSE)) {
				$this->instance->pageid = $COURSE->id;
			}
		}

		if (empty($this->instance)) {
			return $this->content = '';
		} else if ($this->instance->pageid == SITEID) {
			// return $this->content = '';
		}

		if (!empty($this->instance->pageid)) {
			$context = get_context_instance(CONTEXT_COURSE, $this->instance->pageid);
			if ($COURSE->id == $this->instance->pageid) {
				$course = $COURSE;
			} else {
				$course = get_record('course', 'id', $this->instance->pageid);
			}
		} else {
			$context = get_context_instance(CONTEXT_SYSTEM);
			$course = $SITE;
		}

		if (!has_capability('moodle/course:view', $context)) {  // Just return
			return $this->content;
		}

		if (empty($CFG->loginhttps)) {
			$securewwwroot = $CFG->wwwroot;
		} else {
			$securewwwroot = str_replace('http:','https:',$CFG->wwwroot);
		}

	/// Course editing on/off

		if ($course->id !== SITEID and has_capability('moodle/course:update', $context)) {
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/edit.gif" class="icon" alt="" />';
			if (isediting($this->instance->pageid)) {
				$this->content->items[]='<a title="'.get_string('editdescription').' "href="view.php?id='.$this->instance->pageid.'&amp;edit=off&amp;sesskey='.sesskey().'">'.get_string('turneditingoff').'</a>';
			} else {
				$this->content->items[]='<a title="'.get_string('editdescription').' "href="view.php?id='.$this->instance->pageid.'&amp;edit=on&amp;sesskey='.sesskey().'">'.get_string('turneditingon').'</a>';
			}

			$this->content->items[]='<a title="'.get_string('settingsdescrpition').' "href="'.$CFG->wwwroot.'/course/edit.php?id='.$this->instance->pageid.'">'.get_string('settings').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/settings.gif" class="icon" alt="" />';
		}

	/// Assign roles to the course

		if ($course->id != SITEID) {
			if (has_capability('moodle/role:assign', $context)) {
				$this->content->items[]='<a title="'.get_string('modifyrosterdescription').' "href="'.$CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.$context->id.'">'.get_string('assignroles', 'role').'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/roles.gif" class="icon" alt="" />';
			} else if (get_overridable_roles($context, 'name', ROLENAME_ORIGINAL)) {
				$this->content->items[]='<a title="'.get_string('modifyrosterdescription').' "href="'.$CFG->wwwroot.'/'.$CFG->admin.'/roles/override.php?contextid='.$context->id.'">'.get_string('overridepermissions', 'role').'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/roles.gif" class="icon" alt="" />';
			}
		}

	/// View course grades (or just your own grades, same link)
	/// find all accessible reports
		if ($course->id !== SITEID) {
			$reportavailable = false;
			if (has_capability('moodle/grade:viewall', $context)) {
				$reportavailable = true;
			} else if (!empty($course->showgrades)) {
				if ($reports = get_list_of_plugins('grade/report')) {	 // Get all installed reports
					arsort($reports); // user is last, we want to test it first
					foreach ($reports as $plugin) {
						if (has_capability('gradereport/'.$plugin.':view', $context)) {
							//stop when the first visible plugin is found
							$reportavailable = true;
							break;
						}
					}
				}
			}

			if ($reportavailable) {
				$this->content->items[]='<a title="'.get_string('gradesdescription').' "href="'.$CFG->wwwroot.'/grade/report/index.php?id='.$this->instance->pageid.'">'.get_string('grades').'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/grades.gif" class="icon" alt="" />';
			}
		}

	/// Course outcomes (to help give it more prominence because it's important)
		if (!empty($CFG->enableoutcomes)) {
			if ($course->id!==SITEID and has_capability('moodle/course:update', $context)) {
				$this->content->items[]='<a href="'.$CFG->wwwroot.'/grade/edit/outcome/course.php?id='.$this->instance->pageid.'">'.get_string('outcomes', 'grades').'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/outcomes.gif" class="icon" alt="" />';
			}
		}

	/// Manage metacourses
		if ($course->metacourse) {
			if (has_capability('moodle/course:managemetacourse', $context)) {
				$strchildcourses = get_string('childcourses');
				$this->content->items[]='<a href="importstudents.php?id='.$this->instance->pageid.'">'.$strchildcourses.'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/course.gif" class="icon" alt="" />';
			} else if (has_capability('moodle/role:assign', $context)) {
				$strchildcourses = get_string('childcourses');
				$this->content->items[]='<span class="dimmed_text">'.$strchildcourses.'</span>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/course.gif" class="icon" alt="" />';
			}
		}


	/// Manage groups in this course
/*
		if (($course->id!==SITEID) && ($course->groupmode || !$course->groupmodeforce) && has_capability('moodle/course:managegroups', $context)) {
			$strgroups = get_string('groups');
			$this->content->items[]='<a title="'.$strgroups.'" href="'.$CFG->wwwroot.'/group/index.php?id='.$this->instance->pageid.'">'.$strgroups.'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/group.gif" class="icon" alt="" />';
		}
*/
	/// Backup this course

		if ($course->id!==SITEID and has_capability('moodle/site:backup', $context)) {
			$this->content->items[]='<a title="'.get_string('backupdescription').'  "href="'.$CFG->wwwroot.'/backup/backup.php?id='.$this->instance->pageid.'">'.get_string('backup').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/backup.gif" class="icon" alt="" />';
		}

	/// Restore to this course
		if ($course->id !== SITEID and has_capability('moodle/site:restore', $context)) {
			$this->content->items[]='<a title="'.get_string('restoredescription').'  "href="'.$CFG->wwwroot.'/files/index.php?id='.$this->instance->pageid.'&amp;wdir=/backupdata">'.get_string('restore').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/restore.gif" class="icon" alt="" />';
		}

	/// Import data from other courses
		if ($course->id !== SITEID and has_capability('moodle/site:import', $context)) {
			$this->content->items[]='<a title="'.get_string('importdescription').'  "href="'.$CFG->wwwroot.'/course/import.php?id='.$this->instance->pageid.'">'.get_string('import').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/restore.gif" class="icon" alt="" />';
		}

	/// Reset this course
		if ($course->id!==SITEID and has_capability('moodle/course:reset', $context)) {
			$this->content->items[]='<a title="'.get_string('resetdescription').'  "href="'.$CFG->wwwroot.'/course/reset.php?id='.$this->instance->pageid.'">'.get_string('reset').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/return.gif" class="icon" alt="" />';
		}

	/// View course reports
		if ($course->id !== SITEID and has_capability('moodle/site:viewreports', $context)) { // basic capability for listing of reports
			$this->content->items[]='<a title="'.get_string('reportsdescription').'  "href="'.$CFG->wwwroot.'/course/report.php?id='.$this->instance->pageid.'">'.get_string('reports').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/stats.gif" class="icon" alt="" />';
		}

	/// Manage questions
		if ($course->id !== SITEID){
			$questionlink = '';
			$questioncaps = array(
									'moodle/question:add',
									'moodle/question:editmine',
									'moodle/question:editall',
									'moodle/question:viewmine',
									'moodle/question:viewall',
									'moodle/question:movemine',
									'moodle/question:moveall');
			foreach ($questioncaps as $questioncap){
				if (has_capability($questioncap, $context)){
					$questionlink = 'edit.php';
					break;
				}
			}
			if (!$questionlink && has_capability('moodle/question:managecategory', $context)) {
			   $questionlink = 'category.php';
			}
			if ($questionlink) {
				$this->content->items[]='<a title="'.get_string('questiondescription').'  "href="'.$CFG->wwwroot.'/question/'.$questionlink.
						'?courseid='.$this->instance->pageid.'">'.get_string('questions', 'quiz').'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/questions.gif" class="icon" alt="" />';
			}
		}

	/// VINL Code - Quick Quiz Creator
		if ($course->id != SITEID and has_capability('moodle/question:add', $context) and has_capability('moodle/question:managecategory', $context))
		{
			$this->content->items[]='<a title='.get_string('quizcreatordescription').'  "href="'.$CFG->wwwroot.'/question/quizcreator.php?courseid='.$this->instance->pageid.
					'">'.get_string('quizcreator').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/quizcreator.gif" class="icon" alt="" />';
		}

	/// Manage files
		if ($course->id !== SITEID and has_capability('moodle/course:managefiles', $context)) {
			$this->content->items[]='<a title="'.get_string('filesdescription').'  "href="'.$CFG->wwwroot.'/files/index.php?id='.$this->instance->pageid.'">'.get_string('files').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/files.gif" class="icon" alt="" />';
		}

	/// Authorize hooks
		if ($course->enrol == 'authorize' || (empty($course->enrol) && $CFG->enrol == 'authorize') && ($course->id!==SITEID)) {
			require_once($CFG->dirroot.'/enrol/authorize/const.php');
			$paymenturl = '<a href="'.$CFG->wwwroot.'/enrol/authorize/index.php?course='.$course->id.'">'.get_string('payments').'</a> ';
			if (has_capability('enrol/authorize:managepayments', $context)) {
				if ($cnt = count_records('enrol_authorize', 'status', AN_STATUS_AUTH, 'courseid', $course->id)) {
					$paymenturl .= '<a href="'.$CFG->wwwroot.'/enrol/authorize/index.php?status='.AN_STATUS_AUTH.'&amp;course='.$course->id.'">'.get_string('paymentpending', 'moodle', $cnt).'</a>';
				}
			}
			$this->content->items[] = $paymenturl;
			$this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/payment.gif" class="icon" alt="" />';
		}

	/// Unenrol link
		if (empty($course->metacourse) && ($course->id!==SITEID)) {
			if (has_capability('moodle/legacy:guest', $context, NULL, false)) {   // Are a guest now
				$this->content->items[]='<a title="'.get_string('unenroldescription').'  "href="'.$CFG->wwwroot.'/course/enrol.php?id='.$this->instance->pageid.'">'.get_string('enrolme', '', format_string($course->shortname)).'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" class="icon" alt="" />';
			} else if (has_capability('moodle/role:unassignself', $context, NULL, false) and get_user_roles($context, $USER->id, false)) {  // Have some role
				$this->content->items[]='<a title="'.get_string('unenroldescription').'  "href="'.$CFG->wwwroot.'/course/unenrol.php?id='.$this->instance->pageid.'">'.get_string('unenrolme', '', format_string($course->shortname)).'</a>';
				$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" class="icon" alt="" />';
			}
		}

	/// Link to the user own profile (except guests)
		if (!isguestuser() and isloggedin()) {
			$this->content->items[]='<a title="'.get_string('profiledescription').'  "href="'.$CFG->wwwroot.'/user/view.php?id='.$USER->id.'&amp;course='.$course->id.'">'.get_string('profile').'</a>';
			$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" alt="" />';
		}

		return $this->content;
	}

	function applicable_formats() {
		return array('course' => true);   // Not needed on site
	}
}

?>
